package com.wkh.datastructure;
//阶乘
public class Factorial {
    public static int f(int n){
        if (n == 1 || n == 0){
            return 1;
        }
        return n * f(n-1);
    }

    public static void main(String[] args) {
        int f = f(5);
        System.out.println(f);
    }
}
